Isolated I/O card has 24 channels

The 7I64 24-channel isolated I/O card has 48-Vdc
2.5-A output drivers that are all low-saturation-voltage MOSFETs.
The card’s 24 optoisolated inputs will operate from 5 to
24. They have reverse-protection diodes to allow use with ac inputs
and .

The card’s watchdog timer turns all
outputs off if the card is not accessed within a selectable time
interval. The board can host interface via USB, RS-422, and SPI at
115.2 kbaud to 2.5 Mbaud. ($132 ea/100 — available
now.)